Introduction
A leading U.S. CNC machine manufacturer with over 30 years of experience is developing a new 5-axis CNC machine that requires a large-size frameless torque motor to meet its specific needs.
Challenge
The torque motor must meet **CE, RoHS, and REACH certifications** while providing precise performance in torque, power, and other essential parameters. Comprehensive test performance reports are also necessary to assess the final quality.
Solution
To address these challenges, a **customized frameless torque motor** was developed based on the **U160 series standard motor**. The design was specifically tailored to meet the performance and dimensional requirements of the 5-axis CNC machine, ensuring optimal functionality.
Main Parameters Comparison:
| Main Parameters | Before Customization | After Customization |
| Voltage (VDC) | 48V DC | 220V DC |
| Rated output (W) | 471.6 | 1886.4 |
| Rated torque (Nm) | 15 | 60 |
| Instant Max Torque (Nm) | 32 | 100 |
| Rated current (Arms) | 17 | 6 |
| Instant Max Current (Arms) | 38 | 12 |
| Rated speed (rpm) | 300 | 300 |
| Max Speed (rpm) | 600 | 500 |
| Torque constant (Nm/Amms) | 0.88 | 10 |
| Inductance (mH) | 0.44 | 16.6 |
| Resistance (Ω) | 0.20 | 8 |
| Pole-pairs number (2P) | 13 | 13 |
Customized design images of frameles motors
Result
The final solution provided high performance and complete compliance with the required certifications. The customer expressed high satisfaction with both the product quality and service, resulting in a successful integration into their new CNC machine.
